609691790400 has 2016 divisors, whose sum is σ = 2723068569600. Its totient is φ = 117747302400.

The previous prime is 609691790341. The next prime is 609691790401. The reversal of 609691790400 is 4097196906.

It is not an unprimeable number, because it can be changed into a prime (609691790401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 3883387122 + ... + 3883387278.

Almost surely, 2^609691790400 is an apocalyptic number.

609691790400 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 609691790400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1361534284800).

609691790400 is an abundant number, since it is smaller than the sum of its proper divisors (2113376779200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

609691790400 is a wasteful number, since it uses less digits than its factorization.

609691790400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305 (or 283 counting only the distinct ones).

The product of its (nonzero) digits is 734832, while the sum is 51.

The spelling of 609691790400 in words is "six hundred nine billion, six hundred ninety-one million, seven hundred ninety thousand, four hundred".